interfMUlti.java

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/**
 *
 * @author g1.test1
 */
class a1
{
 int x, y;
 a1(int m,int n)
 {
 x=m;
 y=n;
 }
 void disp()
 {
 System.out.println(x*y);
 }
 }
 interface b1
 {
 int con=54;
 void compute(int f,int g);
 void compute2(int k,int l);
 }
 class c extends a1 implements b1
 {
 c(int m,int n)
 {
 super(m,n);
 }
 public void compute(int x,int y)
 {
 System.out.println("inside compute"+(x*y));
 }
 public void compute2(int k,int l)//all methods within interface must be in sub class
 {
 System.out.println("inside compute2"+(con*(k/2*l)));
 }
 }
public class interfMUlti {
public static void main(String args[])
 {
 c obj1=new c(1,2);
 obj1.compute(20,34);
 obj1.compute2(24,30);
 }

}